... direction. This will lead to total thrust direction misalignment, i.e. total thrust direction deviating from the center line. Two methods, i.e. thrust match between the left nozzle and right nozzle and adding guide vanes inside the middle nozzle are proposed and their effects are analyzed respectively based...

.... And the increase of rotating speed means the axial flow fans can provide higher pressure, making them better meet the pressure needs of the hovercrafts with higher cushion pressures. optimization problem rear guide vane axial flow fan impeller aerodynamic performance internal flow quality design point...

..., the result reveals that the design and prediction arrives at the engineering application level. At the same time, the design and prediction method is verified. efficiency correspond mass flow result reveal mixed-flow pump guide vane duct calculation numerical simulation verification design...

... velocity increases, constitute the contraction of the flow channel. Meridian flow channel of guide vane area is the same as axial flow pump, rim and hub are cylindrical, shown in Figure 1. When the hydraulic characteristics are similar, the rim diameter of the contraction flow pump is smaller than...

.... To rotate in one direction in an oscillating flow, guide vanes are attached. The arrangement of the guide vanes and turbines are optimized in a wind tunnel tests. Primary conversion efficiency is measured in a water channel prior to installation of turbine. In this paper, the theoretical study of the total...

... energy demands. Various devices have been developed to extract ocean wave energy. The present paper investigates multi-water-chamber seawalls that can extract wave power. The wave power is extracted using a Savonius water turbine and guide vanes that increase the efficiency of extraction. The application...

... under variable flow and resistance loading conditions. engineering setoguchi sustainable development characteristic guide vane sustainability unsteady characteristic simulator test rig well turbine variation torque wave energy conversion ocean energy owc wave energy converter...

... of a distance between twin runners. 726 CURRENT ACCELERATING DEVICE Attachment of some device which increases a current speed is another way to utilize a lower tidal current. There are two candidates for such current accelerating devices, guide vanes and a diffuser. Fig.6 shows schematically the above mentioned...

... wind turbine power coefficient wind energy guide vane solidity coefficient rotor vane renewable energy turbine characteristic wind velocity turbine guide vane guide vane row rotational speed ratio experiment wind tunnel takao chord length The objective of this study...

... the highest efficiency of the entire system. exhalation renewable energy reservoir simulation well turbine energy conversion characteristic rotor sustainable development coefficient impulse turbine setoguchi wave energy conversion guide vane ocean energy conversion social responsibility...

... accelerator system free surface reservoir simulation test section cwc accelerator system plane air bubble pressure distribution computed result configuration rotor turbulence model computation impeller upstream oil & gas velocity distribution guide vane Paper No. 2006-CY-02 Chen 1 CFD...

... ABSTRACT The objective of this study is to present the effect of tip clearance of impulse turbine with fixed guide vanes for wave energy conversion by experimental investigation and numerical simulation. The investigation has been performed by model testing for two hub-to-tip ratios of 0.6...

... ABSTRACT In order to develop a high performance radial turbine for wave energy conversion, a radial turbine with pitch-controlled guide vanes has been proposed and manufactured in the study. The proposed radial turbine has been investigated experimentally by model testing under steady...

... ABSTRACT This paper deals with the performance analysis of impulse turbine for OWC type wave energy conversion device. Numerical analysis was performed using a commercially-available software. This parametric study includes the variation of the tip clearance and the setting angle of guide vane...

.... guide vane turbine characteristic wave energy conversion well turbine sustainability sustainable development hub-to-tip ratio reynolds number ocean energy diameter engg conf impulse turbine social responsibility kaneko wave power conversion turbine conversion setoguchi wert renewable...

... ABSTRACT This paper presents the work carried out to predict the behavior of a 0.6m Impulse turbine with fixed guide vanes with 0.6 hub to tip (H/T) ratio under real sea conditions. Water surface elevation verses time history based on Pierson Moskowitz Spectra was used as the input data...

... have been clarified. Furthermore, the recommended configuration is presented, especially for setting angles of inner and outer guide vanes. INTRODUCTION A Wells turbine is a self-rectifying air turbine which is expected to be widely used in wave energy devices with oscillating water column. However...

... ABSTRACT This paper presents the account of an investigation of the effects of Reynolds number on the performance of 0.6m Impulse turbines with fixed guide vanes for different hub to tip ratios of 0.6 and 0.7. This work is part of the research to establish an optimum value of hub to tip ratio...

... been compared with those of the Wells turbine, and an optimum preset angle of the rotor has been suggested. efficiency flow condition wave power conversion preset angle turbine staggered blade guide vane conversion sustainable development air turbine simulation ocean energy well...

... ABSTRACT This paper presents a comparison of 0.6m Impulse and Wells turbines with same hub to tip ratio of 0.6 for wave energy power conversion under similar conditions. A 0.6m Wells turbine rotor with a solidity of 0.6, with guide vanes, was tested in a 0.6m test rig. Similarly, an Impulse...